Please don't use the FEAR argument here, as many have said, it's probably the worst coded game of this year. Anyway, I think this will run on anything better than an FX5200. Out of curiousity, I ran the UT2004 demo on my friends old machine boasting an Willamette core paired with a radeon 7000 with 32 megs of ram. At 800x600, everything at second highest setting, advanced setting disabled, it ran fine. This is with 256 megs of DDR200 ram. In my opinion, Epic always takes scalability as a high regard, otherwise they wouldn't sell as many copies. People screaming you need a R520 to run it smoothly, well yeah, but at 1600x1200 with HDR along with 4xAA and 16xAF. At 10x7 with all the goodies, 6600's should be able to keep up.